Aqueously altered igneous rocks sampled on the floor of Jezero crater, Mars by Bosak, Tanja

“…We report observations of the crater floor, below the crater’s sedimentary delta, finding that the floor consists of igneous rocks altered by water. The lowest exposed unit, informally named Séítah, is a coarsely crystalline olivine-rich rock, which accumulated at the base of a magma body. …”
Get full text

Mixing dry and wet magmas in the lower crust of a continental arc: new petrological insights from the Bear Valley Intrusive Suite, southern Sierra Nevada, California by Rezeau, Hervé, Klein, Benjamin Z., Jagoutz, Oliver

“…Considering the similar geochemical characteristics of intermediate and felsic igneous rocks from the Sierra Nevada batholith and the Cascades, mixing magmas of variable H2O contents in the lower crust represents a viable petrological process to produce SiO2-rich liquids that may be more common than previously recognized.…”
Get full text

Oxygen isotope trajectories of crystallizing melts: Insights from modeling and the plutonic record by Bucholz, Claire Elizabeth, Jagoutz, Oliver E, VanTongeren, Jill A., Setera, Jacob, Wang, Zhengrong

“…Elevated oxygen isotope values in igneous rocks are often used to fingerprint supracrustal alteration or assimilation of material that once resided near the surface of the earth. …”
Get full text